Hey @lenz_poa
Thanks for getting in touch. Definitely curious as to why you’re suddenly seeing those Abandoned Cart emails no longer send, though I’m afraid that we will be limited in the information we can look at here in the support forums.
As some background context, when someone abandons the checkout page of a WooCommerce store with the “Email Address” field populated with a valid email address, MailChimp For WooCommerce sends an API call to MailChimp so that it creates a new “transactional” list member in MailChimp and queues up in the Abandoned Cart Automation.
Since it’ll be important to analyze the API calls being sent from WooCommerce to MailChimp, we’ll need to defer to MailChimp Support as they’ll be able to help you look into account-specific details like those API calls. You can reach out to their team via the Knowledge Base here: https://kb.mailchimp.com/accounts/management/mailchimp-support-options
That said, when reaching out I would include some site information about your store including the versions of WooCommerce, MailChimp for WooCommerce, PHP, and MySQL being used to help clear out some initial troubleshooting and speed up the troubleshooting process. My best recommendation would be to take some screenshots of the WooCommerce System Status page to share with MailChimp. That page can be found under WooCommerce > System Status, as explained here: https://docs.woocommerce.com/document/understanding-the-woocommerce-system-status-report/
All this said, let us know if you have any further questions. I’m happy to help.
– Malachite
